diff options
Diffstat (limited to 'soft-fp/op-4.h')
| -rw-r--r-- | soft-fp/op-4.h | 64 |
1 files changed, 25 insertions, 39 deletions
diff --git a/soft-fp/op-4.h b/soft-fp/op-4.h index 3acf96c48c..12731e2e78 100644 --- a/soft-fp/op-4.h +++ b/soft-fp/op-4.h @@ -70,7 +70,7 @@ } \ while (0) -/* This one was broken too */ +/* This one was broken too. */ #define _FP_FRAC_SRL_4(X, N) \ do \ { \ @@ -104,10 +104,9 @@ /* Right shift with sticky-lsb. - * What this actually means is that we do a standard right-shift, - * but that if any of the bits that fall off the right hand side - * were one then we always set the LSbit. - */ + What this actually means is that we do a standard right-shift, + but that if any of the bits that fall off the right hand side + were one then we always set the LSbit. */ #define _FP_FRAC_SRST_4(X, S, N, size) \ do \ { \ @@ -290,9 +289,7 @@ } \ while (0) -/* - * Multiplication algorithms: - */ +/* Multiplication algorithms: */ /* Given a 1W * 1W => 2W primitive, do the extended multiplication. */ @@ -467,10 +464,8 @@ } \ while (0) -/* - * Helper utility for _FP_DIV_MEAT_4_udiv: - * pppp = m * nnn - */ +/* Helper utility for _FP_DIV_MEAT_4_udiv: + * pppp = m * nnn. */ #define umul_ppppmnnn(p3, p2, p1, p0, m, n2, n1, n0) \ do \ { \ @@ -483,9 +478,7 @@ } \ while (0) -/* - * Division algorithms: - */ +/* Division algorithms: */ #define _FP_DIV_MEAT_4_udiv(fs, R, X, Y) \ do \ @@ -504,7 +497,7 @@ R##_e--; \ \ /* Normalize, i.e. make the most significant bit of the \ - denominator set. */ \ + denominator set. */ \ _FP_FRAC_SLL_4 (Y, _FP_WFRACXBITS_##fs); \ \ for (_FP_DIV_MEAT_4_udiv_i = 3; ; _FP_DIV_MEAT_4_udiv_i--) \ @@ -568,11 +561,9 @@ while (0) -/* - * Square root algorithms: - * We have just one right now, maybe Newton approximation - * should be added for those machines where division is fast. - */ +/* Square root algorithms: + We have just one right now, maybe Newton approximation + should be added for those machines where division is fast. */ #define _FP_SQRT_MEAT_4(R, S, T, X, q) \ do \ @@ -657,9 +648,7 @@ while (0) -/* - * Internals - */ +/* Internals. */ #define __FP_FRAC_SET_4(X, I3, I2, I1, I0) \ (X##_f[3] = I3, X##_f[2] = I2, X##_f[1] = I1, X##_f[0] = I0) @@ -787,12 +776,11 @@ #endif /* Convert FP values between word sizes. This appears to be more - * complicated than I'd have expected it to be, so these might be - * wrong... These macros are in any case somewhat bogus because they - * use information about what various FRAC_n variables look like - * internally [eg, that 2 word vars are X_f0 and x_f1]. But so do - * the ones in op-2.h and op-1.h. - */ + complicated than I'd have expected it to be, so these might be + wrong... These macros are in any case somewhat bogus because they + use information about what various FRAC_n variables look like + internally [eg, that 2 word vars are X_f0 and x_f1]. But so do + the ones in op-2.h and op-1.h. */ #define _FP_FRAC_COPY_1_4(D, S) (D##_f = S##_f[0]) #define _FP_FRAC_COPY_2_4(D, S) \ @@ -804,9 +792,8 @@ while (0) /* Assembly/disassembly for converting to/from integral types. - * No shifting or overflow handled here. - */ -/* Put the FP value X into r, which is an integer of size rsize. */ + No shifting or overflow handled here. */ +/* Put the FP value X into r, which is an integer of size rsize. */ #define _FP_FRAC_ASSEMBLE_4(r, X, rsize) \ do \ { \ @@ -820,8 +807,8 @@ } \ else \ { \ - /* I'm feeling lazy so we deal with int == 3words (implausible)*/ \ - /* and int == 4words as a single case. */ \ + /* I'm feeling lazy so we deal with int == 3words \ + (implausible) and int == 4words as a single case. */ \ r = X##_f[3]; \ r = (rsize <= _FP_W_TYPE_SIZE ? 0 : r << _FP_W_TYPE_SIZE); \ r += X##_f[2]; \ @@ -834,10 +821,9 @@ while (0) /* "No disassemble Number Five!" */ -/* move an integer of size rsize into X's fractional part. We rely on - * the _f[] array consisting of words of size _FP_W_TYPE_SIZE to avoid - * having to mask the values we store into it. - */ +/* Move an integer of size rsize into X's fractional part. We rely on + the _f[] array consisting of words of size _FP_W_TYPE_SIZE to avoid + having to mask the values we store into it. */ #define _FP_FRAC_DISASSEMBLE_4(X, r, rsize) \ do \ { \ |